New Input Pins for ADV7184 FB: FASTBLANK OVERLAY CONTROL

I am changing my design from ADV7183A to ADV7184. Please tell how to connect the following new input pins.

1. In ADV7184, I am connecting CVBS inputs to AIN1 and AIN4 inputs. I dont have any RGB analog input. How should I connect the FB input?

2. How should I connect the SOY pin for CVBS input video?

3. I am connecting the 28.63636MHz crystal to XTAL pin. Will the chip work with the default register settings?